Thermoelectric Generator: Difference between revisions
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=OSE Design= | |||
<html><iframe width="560" height="315" src="https://www.youtube.com/embed/1MH8YDkwEfY" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html> | |||
=Efficiency= | =Efficiency= | ||
*5-8% - [] | *5-8% - [] | ||
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=Industry Standards= | =Industry Standards= | ||
*45W for $500 - [http://www.tegmart.com/thermoelectric-generator-products/devil-watt-teg-power-45-watt-wood-burning-stove-thermoelectric-generator/]. Fan cooled. | *45W for $500 - [http://www.tegmart.com/thermoelectric-generator-products/devil-watt-teg-power-45-watt-wood-burning-stove-thermoelectric-generator/]. Fan cooled. | ||
*100W max hot side temp is 300C? - [http://www.devilwatt.com/datasheets/DW-WC-100W.pdf] | *100W max hot side temp is 300C? - [http://www.devilwatt.com/datasheets/DW-WC-100W.pdf] - $725 - [http://www.tegmart.com/thermoelectric-generator-products/devil-watt-teg-power-100-watt-water-cooled-wood-burning-stove-thermoelectric-generator/] | ||
*70W - max hot side temp is 840F? - | *70W - max hot side temp is 840F? - | ||
*60W liquid cooled - [http://thermoelectric-generator.com/teg-thermoelectric-power-generators-for-sale/] - Don't exceed 900F on hot side. | *60W liquid cooled - [http://thermoelectric-generator.com/teg-thermoelectric-power-generators-for-sale/] - Don't exceed 900F on hot side. | ||
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*100W - German - http://thermalforce.de/engl/product/module/index.php | *100W - German - http://thermalforce.de/engl/product/module/index.php | ||
*200W Swedish - [http://www.termo-gen.com/pages/about.html] | *200W Swedish - [http://www.termo-gen.com/pages/about.html] | ||
*500W [[Firevolt]] | |||
=Individual Modules= | =Individual Modules= | ||
*$2 for 60W - or 3W at 5% efficiency - [http://www.amazon.com/Vktech-TEC1-12706-Thermoelectric-Cooling-Peltier/dp/B00IKDL22O/ref=sr_1_5?s=pc&ie=UTF8&qid=1461831196&sr=1-5&keywords=Teg] | *$3 for 3W - [https://www.ebay.com/itm/TEG-Module-High-Temperature-Power-Thermoelectric-Generator-Semiconductor-F4I0/184519142503?_trkparms=aid%3D1110009%26algo%3DSPLICE.COMPLISTINGS%26ao%3D1%26asc%3D20200220094952%26meid%3Dfdf55403879047b888e22da5995c38dc%26pid%3D100008%26rk%3D2%26rkt%3D12%26sd%3D310148993913%26itm%3D184519142503%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3Ddefault%26brand%3DUnbranded&_trksid=p2047675.c100008.m2219] | ||
*$5 for 3W - at 100C between 20C and 120C - [https://www.wish.com/product/596f3a08697ee011070b3077?hide_login_modal=true&from_ad=goog_shopping&_display_country_code=US&_force_currency_code=USD&pid=googleadwords_int&c=%7BcampaignId%7D&ad_cid=596f3a08697ee011070b3077&ad_cc=US&ad_curr=USD&ad_price=2.00&campaign_id=7203534630&gclid=CjwKCAiA7939BRBMEiwA-hX5J5Q4-q8DeF-8bXMzNnWWXSc0LwlHDjpep5_QORoIuM4tNUXpph7-BBoC6rAQAvD_BwE&share=web] | |||
*Cooling is low price - but we need TEG, not cooling. Cooling - $2 for 60W - or 3W at 5% efficiency - [http://www.amazon.com/Vktech-TEC1-12706-Thermoelectric-Cooling-Peltier/dp/B00IKDL22O/ref=sr_1_5?s=pc&ie=UTF8&qid=1461831196&sr=1-5&keywords=Teg] | |||
*Specs - [https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.thermonamic.com/TEC1-12706-English.PDF&ved=0ahUKEwjd-bfDibLMAhUC2GMKHUx7AH0QFggcMAE&usg=AFQjCNHWDjvI2wbFE7MdfZ742YHyVcoNLQ] | *Specs - [https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.thermonamic.com/TEC1-12706-English.PDF&ved=0ahUKEwjd-bfDibLMAhUC2GMKHUx7AH0QFggcMAE&usg=AFQjCNHWDjvI2wbFE7MdfZ742YHyVcoNLQ] | ||
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*Published report on a 150W initial design, which put out 14W in reality. -[http://www.harding.edu/olree/2009-10/senior%20design%20-%20final%20reports/thermoelectric%20generator/thermoelectric_generator_-_final_report.pdf | *Published report on a 150W initial design, which put out 14W in reality. -[http://www.harding.edu/olree/2009-10/senior%20design%20-%20final%20reports/thermoelectric%20generator/thermoelectric_generator_-_final_report.pdf | ||
*Design paper on TEGs - [http://link.springer.com/article/10.1007%2Fs11664-012-2299-8#/page-1] | *Design paper on TEGs - [http://link.springer.com/article/10.1007%2Fs11664-012-2299-8#/page-1] | ||
*http://www.newelectronics.co.uk/electronics-news/high-power-thermoelectric-generator-utilises-thermal-difference-of-only-5c/175937/ | |||
=Technical Design= | =Technical Design= | ||
*Best | *Best Resource as a Design Guide - tight packing fraction of modules appears to be a key requirement for higher power applications - [http://web.mit.edu/imoyer/www/portfolio/absolutzero/peltierasm.html] - as also seen in [[Firevolt]]. | ||
*DOE design report - 500w on a 200 degree differential from car exhaust - [https://www.google.com/url?sa=t&source=web&rct=j&url=http://energy.gov/sites/prod/files/2014/03/f8/deer09_lagrandeur.pdf&ved=0ahUKEwjtmtCog7LMAhUJ4mMKHUNhDnIQFghKMAE&usg=AFQjCNEWu2a7vwTZyJ4wish3Xm9_mvx70Q] | *DOE design report - 500w on a 200 degree differential from car exhaust - [https://www.google.com/url?sa=t&source=web&rct=j&url=http://energy.gov/sites/prod/files/2014/03/f8/deer09_lagrandeur.pdf&ved=0ahUKEwjtmtCog7LMAhUJ4mMKHUNhDnIQFghKMAE&usg=AFQjCNEWu2a7vwTZyJ4wish3Xm9_mvx70Q] | ||
=Conclusions= | |||
*If accessible modules put out 3W (5% of 60W) and cost $2, then we have a 70 cent per watt cost in TEG modules at maximum efficiency. This translates to a practical 100W system at $70 in peltier cells, plus balance of system for heating and cooling. If a stove is used, and the cold water side is based on a simple radiator (which adds minimally to space heating) - the cost is feasible. Pump - [https://www.saltwaterfish.com/product-cobalt-aquatics-e-x-t-in-line-pump?gclid=CL2GhvqOsswCFYU2aQodXcYN2A] - 6W draw, but pump could probably be smaller. $20. Baseboard radiators for cool water heat rejection - $40x2. Aluminum heat sinks - that's the most expensive part - so use simple 1/8"x2"x2" square steel tubing at a dollar per pound. Should be doable at low cost of approximately $250 in parts, making this very competitive with PV prices. A 100W system can produce as much power as a 400W PV system that assumes 6 hrs of light per day. Equivalent PV cost of 65 cents per watt. | |||
Latest revision as of 04:24, 6 December 2020
OSE Design
Efficiency
- 5-8% - []
DIY Builds
- 14 Watts hackaday - [1]
Industry Standards
- 45W for $500 - [2]. Fan cooled.
- 100W max hot side temp is 300C? - [3] - $725 - [4]
- 70W - max hot side temp is 840F? -
- 60W liquid cooled - [5] - Don't exceed 900F on hot side.
- 50W siberian from a small stove - [6]
- 100W - German - http://thermalforce.de/engl/product/module/index.php
- 200W Swedish - [7]
- 500W Firevolt
Individual Modules
- $3 for 3W - [8]
- $5 for 3W - at 100C between 20C and 120C - [9]
- Cooling is low price - but we need TEG, not cooling. Cooling - $2 for 60W - or 3W at 5% efficiency - [10]
- Specs - [11]
Links
- Key link -Thermoelectrics offer to be competitive with other alternative sustainable energy sources - [12]
- Published report on a 150W initial design, which put out 14W in reality. -[http://www.harding.edu/olree/2009-10/senior%20design%20-%20final%20reports/thermoelectric%20generator/thermoelectric_generator_-_final_report.pdf
- Design paper on TEGs - [13]
- http://www.newelectronics.co.uk/electronics-news/high-power-thermoelectric-generator-utilises-thermal-difference-of-only-5c/175937/
Technical Design
- Best Resource as a Design Guide - tight packing fraction of modules appears to be a key requirement for higher power applications - [14] - as also seen in Firevolt.
- DOE design report - 500w on a 200 degree differential from car exhaust - [15]
Conclusions
- If accessible modules put out 3W (5% of 60W) and cost $2, then we have a 70 cent per watt cost in TEG modules at maximum efficiency. This translates to a practical 100W system at $70 in peltier cells, plus balance of system for heating and cooling. If a stove is used, and the cold water side is based on a simple radiator (which adds minimally to space heating) - the cost is feasible. Pump - [16] - 6W draw, but pump could probably be smaller. $20. Baseboard radiators for cool water heat rejection - $40x2. Aluminum heat sinks - that's the most expensive part - so use simple 1/8"x2"x2" square steel tubing at a dollar per pound. Should be doable at low cost of approximately $250 in parts, making this very competitive with PV prices. A 100W system can produce as much power as a 400W PV system that assumes 6 hrs of light per day. Equivalent PV cost of 65 cents per watt.